Specify the domain or public IP address of the Outgoing mail server;
Specify the SMTP Port;
Enable the Use SSL/TLS option to use the encrypted protocol.
If the server requires authorization:
Enable the Authorization on the mail server option.
Specify the mailbox address in the Login field.
Specify the Password to connect.
To check the connection settings, you can send a test email from a specified server. To do this, enter an Email address in the Test email box and click Send a test email.
Press Save to connect the mail server.
To not use the connected server, go to → → Mail settings → Do not use the mail server → Disable.